Tenter chain link



Sept 8, 1931- v w` A. STELLING v 1,822,676

TENTER CHAIN LINK Filed sept. 8, 1930 INVENToR,

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atented Sept. S, 1931 UNITED STATES PATENT OFFICE WILLIAM A. STELLING, FPROVIDENCE, RHODE ISLAND, ASSIGNOR T0 THE TEXTILE- FINISHING- MACHINERYCOMPANY, A` CORPORATION OF RHODE ISLAND TENTER CHAINV LINK Applicationled September 8, 1930.l Serial N0. 480,408.

A further object of this invention is the provision of means forpositively and pivotally supporting the work engaging blade and yetpermitting it to be removed by simple manual manipulation `or movementof the mounting means to a predetermined detaching position.

A still further object of this invention is the provision of means forpositively locking the mounting means in working position.

With these and other objects and advantageous features in view, theinvention consists of a novel arrangement of partsmore fully disclosedin the detailed description following, in conjunction with theaccompanying drawings, and more particularly set forth in the appendedclaims.

. In the drawings:

- Fig. 1 is a face view or front elevation of one of the tenter chainlinks;

F ig. 2 is a central section thereof on line 2-2 of Figure 1;

Fig. 3 is a sectional view through the movable jaw showing the workengaging blade or insert as mounted therein in working position;

Fig. 4 is a View similar to Figure 3 showing the mounting means asturned to permit removal of the blade from the jaw;

Fig 5 is a side elevation of the mounting Pm;

1g. 6 is a detail enlarged view of the relation of the pin and themounting portion of the work engaging blade showing in full lines theblade in position to be removed from the jaw, while showing. in dottedlines the blade in its working position.

Inthe use of tenter chain links, it is desirable to have a rockablymounted work engaging blade in the movable jaw so that the same willadjust or positionitself on the surface of the fabric to obtain the bestbiting engagement between it and the fixed jaw. The work engaging bladeis sharpened so that its edge will better bite the fabric, and from timeto time it is desirable to remove the blade for replacement orresharpening the edge thereof, and in order that this may be easilyaccomplished, I have provided a pin whichr extends through an opening inthe blade located'in the middle part thereof for pivotally mounting theblade in the jaw, the blade having a constricted entrant notch ex-`tending from the edge of the blade to this opening through which anarrowed portion of the pin may extend, the pin being rotatably mountedto move this `narrowed portion as desired from working to inoperativeposition; and the following is a detailed description of the presentembodiment of this invention illustrating the preferred means by whichthese advantageous results may be accomplished.

With reference to the drawings, 10 designates the body of the tenterchain link which is provided with theusual spaced ears 11 and l,12 atone end to receive a single ear 13 of the next link which is at theopposite end of each link from the spaced ears 11 and 12. A xed jaw y14is provided` on the body and an overhanging Yportion 15 pivotally mountsthe swingingor movablejaw 16 above the fixedjaw14. The movable jaw ishingedly supported upon a pin `17 which extends through vthe bearings 39and 40 on the overhanging portion and the bosses 18 and 19 andthe'opener memberL 2O of the movable jaw. rIhe lower `portion of themovable jaw is provided with a recess 21 extending across the widththereof and shaped as illustrated in Figures 3 and 4 with an arcuateportion 22 at its middle. Within this recess 21 there is located a workengaging blade 23 provided with an arcuateA portion 24 which is receivedwithin the -arcuate portion 22 ofthe recess. A generally circularopening 25 is Cil provided in the blade located partially in the arcuatearea at the upper edge of the blade and a constricted entrant opening ornotch 26 leads from the opening 25 to the edge of the blade.

A boss or enlargement 28 is provided on the face of the movable jaw, apin 27 is rotatably mounted in this boss and spans the recess 2ltherein. This pin 27 is slotted or cut away as at 29 Within the recessto reduce its cross section suiiiciently to permit it to pass throughtheconstricted entrantopening 26 in the edge of the blade When the pin isro tated to one certain position. v V

In mountingthe blade inthe `ja`W,' the :pin 27 is rotated to thepbsitionshotvnin-Figure 4t by a screw driver or the like Which will be used forengaging the slot 30 th'ereftfr this purpose, the same being positionedto aligning the slot With a mark or other designation 3l on the faceofthe boss 28, anilafter the blade is'positioned, the `pin is `rotated ina similar manner a quarter ofal turn'to cause the slot 30'to'talign withthe `mark `or'other designation 82, thusbringingthe pinto the positionillustrated in Figure Sto pivotally and positively `support the blade inposition.

Thereis no spring action or the likefpermitting the blade to beWithdrawn by appropriate pull, but raftliertln-z same is positivelymounted in position. lIn order topositively lock the pin in LWorking`pcsition, an' opening 33 isprovided through the pin and falsoran openingSais.provided` in the b'oss -28 and when the pin has its `slot 30alignedwit-hthe indica 32theopenings'33 and 34 Willfalign for thereception of thel'ock pin 35"Whic`h may be of the cotterpin type to'have its end portions 36 :bentnver to hold-fthesame` in position, asillustrated inFigurelL i It will beiapparent thatIfhave provided aconstruction in Which the blade may beeasily removed for repair orreplacement bysimple manual manipulation `of a pin,'and yet when inworkingposition, the same' is positively held against removal andyetipivotally `or roclrably ysnpported in 4position by'a single suitablyshaped pin. i

'IVhile'I have described certain construction forms which embodytheiprinciples of my inventiornit is obviousthat other de siredchanges'in `arrangement may Abeflnade Within the spirit `andthe scopeoftheinventionv as defined in theappended claims.

I claim:

l. In a tenter chain linlr,a` movable jaw having a slot therein, a Workengaging blade in said slot having an opening therein,"=and meansextending throughsaid openingshiftable in said openingwithout` removaltherefrom for positively'and'removably holding said blade in said slot.

2. In a tenter chain link, a'movable"-jaw having a slot therein,- a workengaging" blade in said slot having an opening Vtherein with mit it tobe removed from said constricted entrance.

4. *Inatenterchain 'lin'ln a movable jaw having a slot therein, a Workengaging blade in said slot havingl a circular opening therein witlra,constricted entrance to said opening from the edge thereof, and acylindrical pin Arotatably monntcdiu saidij'awlsnbstantially` the `sizeo'f said opening l located thereinto pivotallyunount th'e'blade inthe.jaw and having a flattened side to .permitit to be removed froi'n-saidconstricted entrance.

5. In a tenterchainllinlna movable-jaw having'la slot` therein; a Workengaging blade in said` slot leaving an opening therein 'with aconstricted entrance tosa-id'epeningfrom the edge thereof,'apinf'retatably mounted in said jaw substantially the size' ofsai'dopening and'having Iaflattened sideto permit it to be removed' fromsai'd 'constricted entrance, and means to prevent rotation ofls'aid pin.

46. In "a tenter chainllinln a inovable jaw having a slot therein,a`werk engaging blade in said slot having fan opening therein with aconstricted entrance tosa'iid opening from the edge thereof, al pinrotatably mounted in lsaid jaav substantially' the size of `sai-dlopening and havingaf-iattened"sifdetoiperm-it it to be removed fromsaid *constricted entrance, 'a boss on saidmovable rjaw" having anopening therethrmtgh,- said pin havinglan opening registeri'ii'gwithsa-idopeiring in said boss, and a pin extending throughsaid registeringopenings, l y e 1. -'In a tenterchain lli-nk, movable jaw having a slot'thereima' work engaging 'blade in said slot having an openingtherein-With a constri/c'ted entrance to :'saidopening" from the edgethereof, an'dapin rotatably mounted in saidjawsubstantially thesiZe-ofsaid opening" aiicl"liaviiigal 'iiattened 'side to; pen mit it tobe removed from `said constricte'd entrance,` said! 'pin havinglaslettedhead 'for rotation. A

"8. In `a`-t`ent`e`r cliain"lin`l{,`1amovableljavv havinga slot therein,aworlr engaging blade inV said" slot havinganeopening therein With a.constricted f entra-nce 'to fsaid op'eiiingI from the edge thereof, a'p'inf rotatably' inoun'ted in saidffjawsubstantially' the= 'sizeofns'aid opening and=having a'ilattened .sideto permit it 'tofberemoved' ifromvsaidf'codstricted fen-

